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TPS54225

采用 HTSSOP 封裝的 4.5V 至 18V 輸入、2A 同步降壓轉(zhuǎn)換器; ? D-CAP2? Mode Enables Fast Transient Response\n? Low Output Ripple and Allows Ceramic Output Capacitor\n? Wide VCC Input Voltage Range: 4.5 V to 18 V\n? Wide VIN Input Voltage Range: 2 V to 18 V\n? Output Voltage Range: 0.76 V to 5.5 V\n? Highly Efficient Integrated FET’s Optimized for Lower Duty Cycle Applications – 160 mΩ (High Side) and 110 mΩ (Low Side)\n? High Efficiency, less than 10 μA at shutdown\n? High Initial Bandgap Reference Accuracy\n? Adjustable Soft Start\n? Pre-Biased Soft Start\n? 700-kHz Switching Frequency (fSW)\n? Cycle-By-Cycle Overcurrent Limit\n? Power Good Output\n? APPLICATIONS \n? Wide Range of Applications for Low Voltage System \n? Digital TV Power Supply\n? High Definition Blu-ray Disc? Players\n? Networking Home Terminal\n? Digital Set Top Box (STB)\n \n \n D-CAP2, PowerPAD are trademarks of Texas Instruments. Blu-ray Disc is a trademark of Blu-ray Disc Association.;

The TPS54225 is an adaptive on-time D-CAP2? mode synchronous buck converter. The TPS54225 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54225 uses the D-CAP2? mode control which provides a fast transient response with no external compensation components. The TPS54225 also has a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VCC input , and from 2-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54225 is available in the 14 pin HTSSOP package, and designed to operate from –40°C to 85°C.

TPS54225

4.5V to 18V Input, 2-A Synchronous Step-Down SWIFTTM Converter

TPS54225-Q1

具有 DCAP2 模式的汽車類 4.5V 至 18V、2A 同步降壓轉(zhuǎn)換器; ? 符合汽車應(yīng)用要求\n? D-CAP2 模式支持快速瞬態(tài)響應(yīng)\n? 低輸出紋波，支持陶瓷輸出電容器\n? 寬 VCC 輸入電壓范圍：4.5V 至 18V\n? 寬 VIN 輸入電壓范圍： 2 V 至 18 V\n? 輸出電壓范圍： 0.76V 至 5.5V\n? 高效集成 FET，針對(duì) 更低占空比應(yīng)用進(jìn)行優(yōu)化 - 160 m?（高側(cè)）和 110 m?（低側(cè)）\n? 關(guān)斷時(shí)的高效率，流耗不足 10 μA\n? 初始帶隙參考的高精度\n? 可調(diào)軟啟動(dòng)\n? 預(yù)偏置軟啟動(dòng)\n? 700kHz 開(kāi)關(guān)頻率 (fSW)\n? 逐周期過(guò)流限制\n? 電源良好輸出;

TPS54225-Q1 是一款自適應(yīng)接通時(shí)間 D-CAP2? 模式同步降壓型轉(zhuǎn)換器。 TPS54225-Q1 可幫助系統(tǒng)設(shè)計(jì)人員通過(guò)低成本、低組件數(shù)量的低待機(jī)電流解決方案來(lái)完成各種終端設(shè)備的電源總線調(diào)節(jié)器集。 TPS54225-Q1 的主控制環(huán)路采用 D-CAP2? 模式控制，無(wú)需外部補(bǔ)償組件便可實(shí)現(xiàn)極快的瞬態(tài)響應(yīng)。此外，TPS54225-Q1 的專有電路還有助于該器件適應(yīng)諸如 POSCAP 或 SP-CAP 等低等效串聯(lián)電阻 (ESR) 輸出電容器以及超低 ESR 陶瓷電容器。 該器件可在 4.5 V 至 18 V VCC 輸入、及 2-V 至 18-V VIN 輸入電源電壓范圍內(nèi)工作。 輸出電壓可在 0.76 V 與 5.5 V 之間進(jìn)行編程。此外，該器件還支持可調(diào)慢啟動(dòng)時(shí)間與電源良好功能。 TPS54225-Q1 采用 14 引腳 HTSSOP 封裝，設(shè)計(jì)用于在 –40°C 至 85°C 的范圍內(nèi)工作。

TPS54225_15

4.5V to 18V Input, 2-A Synchronous Step-Down SWIFTTM Converter

TPS54225PWP

4.5V to 18V Input, 2-A Synchronous Step-Down SWIFTTM Converter

TPS54225PWPR

4.5V to 18V Input, 2-A Synchronous Step-Down SWIFTTM Converter

TPS54225-Q1

4.5V to 18V Input, 2-A Synchronous Step-Down SWIFTTM Converter

TPS54225-Q1_15

4.5V to 18V Input, 2-A Synchronous Step-Down SWIFTTM Converter

TPS54225TPWPRQ1

4.5V to 18V Input, 2-A Synchronous Step-Down SWIFTTM Converter

TPS54225PWP

Package：14-TSSOP（0.173"，4.40mm 寬）裸露焊盤；包裝：卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶 功能：降壓 類別：集成電路（IC） 穩(wěn)壓器 - DC-DC 開(kāi)關(guān)穩(wěn)壓器 描述：IC REG BUCK ADJ 2A 14HTSSOP